Stop-siphon



(No Modem A. SPILDEW.

STOP SIPHON.

110. 416,217. Patented Dec. 3, 1889.

UNITED STATES PATENTv OFFICE.

ALFRED S. FILDEIV, OF ST. JOHNS, MICHIGAN.

STOP-SIPHON.

SPECIFICATION forming part of Letters Patent No. 416,217, dated December 3, 1889.

Application filed December 11, 1888. Serial No. 293,322. (No model.)

To all whom, t may con/cern.'

Be it known that I, ALFRED S. FILDEw, a citizen of the United States, residing at St. .Iohns, in the county of Clinton and State of Michigan, have invented a new and useful Improvement in Siphons, of which the following is a specification.

My invention relates to that class of siphons commonly known as stop-siphons, and has for its object to produce a siphon by which the fluid passing through it from one vessel to another maybe autom ati cally stopped at any period of its flow.

The nature of the invention consists in the details of combination and construction substantially as illustrated in the accompanying drawing, hereinafter described, and subsequently pointed out in the claim.

The accompanying drawing illustrates two bottles, one above the other, with my newlyinvented siphon connecting' them.

A designates the upper vessel, resting upon the support A. B designates the lower vessel. In the example of my invention here given these are both illustrated as being bottles. In the neck of the lower bottle is inserted an elastic cork b, which is `preferaloly made of india-rubber. This cork is perforated with two holes.

C designates the siphon-tube, which near its lower end is litted air-tight in and passes through the cork b into the bottle B, and, extending upward, t-urns over the neck of the bottle A and reaches downward inside of the bottle and nearly to the bottom.

D designates the` air-tube, which is also fitted air-tight in the cork b. The lower end of this tube should reach downward in the bottle D to the point to which the bottle is to be filled. In thefeXample here given the upper surface of the fluid in the lower bottle is designated by g. .The upper end of the airtube D is to be so that it can be held a little above the upper surface f of the fluid in the upper bottle A. In the example here given this tube is illustrated as being tied to the siphon-tube near the the top of the bottle A and extending a little above the lip of that bottle.

The operator first sees that the cork l) lits air-tight in the bottle B and around the tubes C and Il). Then with his mouth applied to the upper part of the tube -D he sucks the atmosphere out of the bottle B until the iiuid begins to run through the siphon from the bottle A into the bottle B. Then he withdraws his mouth from the top of the air-tube D and allows the iiuid to flow freely into the bottle B. As soon as the fluid rises up to the lower end of the tube D, the flow of fluid will entirely cease, for the rising fluid will act as a valve on the lower end of the tube D, and at the same time the air confined in the upper part of the bottle B will become so condensed by the pressure of the fluid that it will counterbalance the fluid in Athe siphon, and so, as before said, the flow will cease.

It is evident that this siphon is not confined to bottles alone, but may be used with many other containing-vessels, such as are suitable for the purpose.

lVhat I claim as my invention, and desire to secure by Letters Patent, is-

The combination, with two containing-vessels, one above the other, and a siphon-tube forming a connection between the said vessels, of an air-tight stopper in the said lower vessel through which said siphon passes, with an air-tight joint, and an air-tube also passv ing through said cork into said lower vessel, with an air-tight joint having its lower end within said lower vessel and its upper end held above the upper surface of the fluid in the said upper vessel, all substantially as and `for the purpose set forth.

ALFRED S. FILDEIV.

Witnesses:

JOHN T. MILLMAN, EDWARD N AUMEs. 

